| 主权项 |
1. A foil of a tagger ring foil (TRF) closure system for a container comprising a composite of two or more layers made from different materials, wherein at least one layer comprises aluminium, and having a board burst strength, when measured with Australian Standard (AS) 1301.438s, of less than 400 KPa and a cross direction ring crush resistance pressure, defined as the ring crush measured using AS 1301.407s, divided by 0.152 and multiplied by the foil thickness measured using AS 1301.426s, of less than 10 MPa so that, in use, when the foil is part of a TRF closure system on a container and the foil is ruptured to gain access to the contents of the container, the ruptured foil does not form a sharp edge. |
